400 bhp

[jet_dogg]

Think it's safe to assume we're all on the dynojet page where all others are the minority.

[Obioban]

Think it's safe to assume we're all on the dynojet page where all others are the minority.

Even on a dynojet, the same car will read higher in uncorrected mode than STD mode, and higher in STD mode than in SAE mode.

SAE dynojet is generally, IMO, the way I'd hope all people list numbers, just to have everyone on the same page and climate adjusted. Really, though, listing any numbers other than before/after, and contemplating them as a percent rather than absolutely numbers, is kind of meaningless.

I've been going to the same dynojet for 13 years, always run in SAE mode, and am still not convinced it's useful to compare to the same number 13 years ago :P

[T-Rex]

What kind of dyno in what mode? “335whp” in isolation is a pretty meaningless statement.

Attaching the sheet here - it was EAS' DynoJet on a 90*, 80% humidity day - and it was 334whp, my memory was off by 1 😅

Completely agree it's all about the specifics when it comes to dynos, but my "finely" calibrated butt dyno suggests that a gain of 50+whp feels accurate

Did you dyno your car before any of those mods?

The car in the thread I linked put down 290 whp stock and 332 whp with an airbox and euro headers. If we take BMW's claim that the engine makes 333 bhp stock, 332 whp would correlate to 381 bhp —not quite 400.

Not saying that's the case with yours, but unless you put the car on the dyno when it was completely stock, bhp is only a guess (not that I think it really matters, but that's what the OP is asking about).

I did - it put down 279whp on Lang Racing's Mustang

[Obioban]

Attaching the sheet here - it was EAS' DynoJet on a 90*, 80% humidity day - and it was 334whp, my memory was off by 1 😅

Completely agree it's all about the specifics when it comes to dynos, but my "finely" calibrated butt dyno suggests that a gain of 50+whp feels accurate


I did - it put down 279whp on Lang Racing's Mustang

That would probably be ~310-315rwhp if you went to a non EAS dynojet in SAE mode-- or ~380 crank. IDK what they're doing over there, but EAS in particularly seems to always be high (including stock cars).

Or, better yet, stick it back on Lang's, since that's where you did your stock pull. Then you'd really get a much closer percent gain.

[T-Rex]

That would probably be ~310-315rwhp if you went to a non EAS dynojet in SAE mode-- or ~380 crank. IDK what they're doing over there, but EAS in particularly seems to always be high (including stock cars).

Or, better yet, stick it back on Lang's, since that's where you did your stock pull. Then you'd really get a much closer percent gain.

Definitely the plan to go back to Lang if/when I get around to cams or the next big horsepower mod (may do E85/pump/injectors + new tune). Either way, posted in support of Heinz's recommendations - I took the "less ideal" path and still was able to get close, so if OP follows his advice, 400bhp should be easily achieved.